About Artemisia arbuscula Nutt.
Artemisia arbuscula Nutt. is a gray-green to gray shrub that typically grows in mounds no higher than 30 centimeters (12 inches). It produces many branches covered in hairy leaves, each less than one centimeter long. Its inflorescence is a spike-shaped arrangement of hairy flower head clusters. Each flower head contains a small number of pale yellow disc florets and no ray florets. It produces a tiny achene fruit less than one millimeter wide. Three subspecies are recognized: Artemisia arbuscula subsp. arbuscula, Artemisia arbuscula subsp. longiloba (Osterh.) L.M.Shultz, and Artemisia arbuscula subsp. thermopola Beetle, which occurs in Idaho, Utah, and Wyoming.
